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Finding the Fourth Proportional to 263,328.70, 394,324.80 and 144,866.20

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Solution

The fourth proportional to 263,328.70, 394,324.80 and 144,866.20 is: 216,931.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,328.70 : 394,324.80 = 144,866.20 : x
  2. Step 2: Convert to fraction form
    263,328.70/394,324.80 = 144,866.20/x
  3. Step 3: Cross multiply
    263,328.70x = 394,324.80 × 144,866.20
  4. Step 4: Simplify right side
    263,328.70x = 57,124,335,341.76
  5. Step 5: Solve for x
    x = 57,124,335,341.76/263,328.70
  6. Step 6: Final answer
    x = 216,931.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.